Start by chopping the broccoli into small florets and dicing the onion. Mince the garlic and shred or dice the cooked chicken. Freshly grate the cheddar cheese and set everything aside for easy cooking.
Melt the butter in a large pot over medium heat. Add the diced onion and cook until softened and translucent. Stir in the garlic and cook briefly until fragrant without allowing it to brown.
Add the orzo pasta to the pot and stir frequently. Toasting the pasta for a few minutes develops a nutty flavor and helps enhance the overall taste of the dish.
Pour in the chicken broth and season with salt and pepper. Stir well and bring the mixture to a gentle simmer. Allow the orzo to begin cooking while absorbing the flavorful broth.
Add the chopped broccoli florets to the pot. Continue simmering until the broccoli becomes tender and the orzo reaches the perfect texture. Stir occasionally to prevent sticking.
Stir in the cooked chicken and allow it to warm through. The chicken absorbs the creamy flavors while adding protein and heartiness to the recipe.
Reduce the heat to low and slowly pour in the heavy cream. Stir continuously to create a smooth and velvety texture throughout the dish.
Gradually add the freshly grated cheddar cheese while stirring. Allow the cheese to melt completely into the soup, creating a rich and creamy consistency.
Taste the soup and adjust the seasoning as needed. Add extra salt, pepper, or red pepper flakes depending on your preference.
Remove the pot from the heat and let it rest for a few minutes. This helps the flavors blend together while slightly thickening the soup before serving.